ID   ATPF2_NITWN             Reviewed;         185 AA.
AC   Q3SW37;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2005, sequence version 1.
DT   25-MAY-2022, entry version 108.
DE   RecName: Full=ATP synthase subunit b 2;
DE   AltName: Full=ATP synthase F(0) sector subunit b 2;
DE   AltName: Full=ATPase subunit I 2;
DE   AltName: Full=F-type ATPase subunit b 2;
DE            Short=F-ATPase subunit b 2;
GN   Name=atpF2; Synonyms=atpG; OrderedLocusNames=Nwi_0236;
OS   Nitrobacter winogradskyi (strain ATCC 25391 / DSM 10237 / CIP 104748 /
OS   NCIMB 11846 / Nb-255).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Nitrobacter.
OX   NCBI_TaxID=323098;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25391 / DSM 10237 / CIP 104748 / NCIMB 11846 / Nb-255;
RX   PubMed=16517654; DOI=10.1128/aem.72.3.2050-2063.2006;
RA   Starkenburg S.R., Chain P.S.G., Sayavedra-Soto L.A., Hauser L., Land M.L.,
RA   Larimer F.W., Malfatti S.A., Klotz M.G., Bottomley P.J., Arp D.J.,
RA   Hickey W.J.;
RT   "Genome sequence of the chemolithoautotrophic nitrite-oxidizing bacterium
RT   Nitrobacter winogradskyi Nb-255.";
RL   Appl. Environ. Microbiol. 72:2050-2063(2006).
CC   -!- FUNCTION: F(1)F(0) ATP synthase produces ATP from ADP in the presence
CC       of a proton or sodium gradient. F-type ATPases consist of two
CC       structural domains, F(1) containing the extramembraneous catalytic core
CC       and F(0) containing the membrane proton channel, linked together by a
CC       central stalk and a peripheral stalk. During catalysis, ATP synthesis
CC       in the catalytic domain of F(1) is coupled via a rotary mechanism of
CC       the central stalk subunits to proton translocation (By similarity).
CC       {ECO:0000250}.
CC   -!- FUNCTION: Component of the F(0) channel, it forms part of the
CC       peripheral stalk, linking F(1) to F(0). The b'-subunit is a diverged
CC       and duplicated form of b found in plants and photosynthetic bacteria
CC       (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: F-type ATPases have 2 components, F(1) - the catalytic core
CC       - and F(0) - the membrane proton channel. F(1) has five subunits:
CC       alpha(3), beta(3), gamma(1), delta(1), epsilon(1). F(0) has three main
CC       subunits: a(1), b(2) and c(10-14). The alpha and beta chains form an
CC       alternating ring which encloses part of the gamma chain. F(1) is
CC       attached to F(0) by a central stalk formed by the gamma and epsilon
CC       chains, while a peripheral stalk is formed by the delta and b chains
CC       (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000250}; Single-pass
CC       membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase B chain family. {ECO:0000305}.
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DR   EMBL; CP000115; ABA03504.1; -; Genomic_DNA.
DR   RefSeq; WP_011313571.1; NC_007406.1.
DR   AlphaFoldDB; Q3SW37; -.
DR   SMR; Q3SW37; -.
DR   STRING; 323098.Nwi_0236; -.
DR   EnsemblBacteria; ABA03504; ABA03504; Nwi_0236.
DR   KEGG; nwi:Nwi_0236; -.
DR   eggNOG; COG0711; Bacteria.
DR   HOGENOM; CLU_079215_1_2_5; -.
DR   OMA; NQIFWLV; -.
DR   OrthoDB; 1544382at2; -.
DR   Proteomes; UP000002531; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045263; C:proton-transporting ATP synthase complex, coupling factor F(o); IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01398; ATP_synth_b_bprime; 1.
DR   InterPro; IPR002146; ATP_synth_b/b'su_bac/chlpt.
DR   Pfam; PF00430; ATP-synt_B; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; Cell inner membrane; Cell membrane; CF(0);
KW   Hydrogen ion transport; Ion transport; Membrane; Reference proteome;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..185
FT                   /note="ATP synthase subunit b 2"
FT                   /id="PRO_0000369017"
FT   TRANSMEM        34..56
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   REGION          1..25
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   185 AA;  19483 MW;  A55EF25C650CC886 CRC64;
     MAESHGNAHG ATAHTEADGG HKAPFPPFQK ETFASQLVSL TIAFVALYLI SSRLALPRVR
     QTIDDRENTI KGDLAQAQKL KDDSDAALKA YEAELAAARA RAQAIGNETR EKLNAAAEAE
     RKALEERLSV KLADAEKTIA STRAAAMSNV RGIASDAATA IVQQLTGATP DSKLVDSAVD
     ASMKG